Irrational land use and forest cutting have resulted in the serious degradation, the decrease of land productivity and the water and soil erosion in the fragile soil system and forest system.
不合理的土地利用方式和对森林的不合理砍伐导致脆弱的土壤系统和森林生态系统的严重退化、生产力下降和严重的水土流失。
Forest cutting management quota system is the country according to the principle of reasonable management and sustainable using, it is a basic management system prescribe the quota of the forest.
森林采伐限额管理制度是国家按照合理经营和永续利用的原则，规定林木采伐限额的一种最基本的管理制度。
Cutting and burning of the Amazon forest is calculated to cause 20 percent of global carbon dioxide emissions, making Brazil the fourth-biggest greenhouse gas polluter.
对亚马逊雨林的砍伐与焚烧被认为造成了约20%的全球二氧化碳排放，使得巴西成为了全球第四大温室气体排放者。
Wood from legal sources in Aceh is limited, and cutting of the local forest resources is difficult to control.
在亚齐，合法来源的木材很有限，而且对砍伐当地的森林资源的情况很难进行控制。
He managed to stop the cutting of virgin forest (and the destruction of golden monkey habitat) in Yunnan province.
他成功阻止了对云南原始森林的砍伐，由此也阻止了对金丝猴栖息地的破坏。
Brazil has sophisticated satellite technology, able to pinpoint forest fires and tree-cutting and to predict the weather.
巴西有精密的卫星技术，可以准确指出森林火灾和盗伐树木，并且预告天气。
At times, Peruvian miners were cutting down four and a half American football fields a day of forest.
有时秘鲁矿工一天甚至砍伐相当于四个半美式足球场宽的森林。
Still, after years of fights over logging practices, including lawsuits to reduce clear cutting on federal land, distrust of the Forest Service's motives remains.
经过数年与砍伐行为的斗争，其中包括对联邦土地上滥砍滥伐的诉讼，人们对于林务局的动机仍然持怀疑态度。
The present and features of the safety control on site in cutting areas on state owned forest farms and tending farms are presented, with the specific safety controls given.
本文论述了当前国有林场、采育场木材生产伐区现场安全管理的现状和特点，提出了伐区现场安全管理的内容与措施。
The results provide theoretical basis for seabuckthorn energy forest cultivation technique, determination of rotation cutting period and fruit of different ages processing and utilization.
试验结果为沙棘能源林栽培技术和轮伐期的确定、为不同林龄果实加工利用的优劣状况提供了理论依据。
How to manage optimally and make use of the resource will play an important role in sustained-yield forest management in Heilongjiang province and determining the age of harvest cutting is the key.
如何合理地经营利用好这部分资源，对该省森林永续经营利用起到重要作用，其主伐年龄的确定是关键问题。
The results show that the population growth, farming, forest degradation and fuel wood cutting are the canonical factors causing the soil erosion in the plateau mountains.
结果表明：人口压力、农业压力、森林资源破坏和薪柴重负是导致高原山地土壤侵蚀的典型相关因子。
By the statistical analysis method, the authors researched the growth model and cutting age of masson pine natural forest with the sample plot inventory data.
根据标准地调查资料，应用统计分析方法研究生长模型，并结合森林经营实际确定采伐年龄。
The paper concerns in virgin Korean pine forest, after sanitation cutting, the herb increases 59.1%, the shrub decreases 50.95%, the litter decreases 24.58%.
本文揭示了红松原始林卫生清理后，绿色草本植物数量增加了59.1%，矮小灌木数量下降了50.95%，枯枝落叶层含量下降了24.58%。
The development of the automatic cutting planter provides a new machine for cutting planting operation of high yield raw material forest and improves the level of forest equipment.
链盘式投苗全自动插条机的研制，可为丰产原料林插条作业提供一种新机型，以提高林业机械化装备整体水平。
Combining with the practical experiments of forest resources supervision, the necessity and measures of cutting quota management are discussed.
本文结合森林资源监督管理的实际经验，论述了森林采伐限额管理的必要性及实施的具体措施。
How to vividly show a forest of full view, distribution and design of cutting area becomes a challenge to forestry field.
如何将森林的全貌、分布特点、伐区设计生动形象的呈现在人们面前，成为林业领域不断突破的难题。
Forest disasters mainly contain human cutting disasters, fire disasters, pest and rodent disaster, the lack of water disasters. This article focuses on forestry "three evils" and prevention.
森林灾害主要有：人为砍伐树木的灾害、火险灾害、病虫鼠害的灾害、缺乏水资源的灾害等等。本文主要阐述了林业“三害”及其防治。
Becky worked in a store doing bookkeeping, while John found work driving a truck and also cutting the flammable undergrowth in the forests (" thinning "them) for the US National forest Service.
贝基在一家商店里记账，约翰找到了开卡车的工作，同时为美国国家森林管理局干一份在森林里砍掉易燃矮树丛的工作(让树木变稀疏，也称抚育或间伐)。
And also cutting woods according to seasons ensures healthier forest.
要按严格的时令进山伐木，这样才能有利于森林的生长。
Measurement is made to forbid cutting, to enforce the plantation, to increase the forest quality and benefit, and adjust the cutting methods.
对林相破碎、生产力低的林分加大抚育力度，提高林分质量和效益，同时调整采伐方式。
You can see a firebreak here made by cutting the miscellaneous trees to prevent forest fires.
为了防止山火，此处的杂木被砍伐，取而代之的是防火线。
Calorific values of l-5 year old trees of 21 main woody plant species in Ningxia were determined by using a sampling method similar to that of cutting fuel shrub forest.
应用模拟灌木平茬的采样方法，采集、测定了宁夏21种主要木本植物1 ~ 5年生树的热值。
Moreover, forest harvesting could increase the fire risk class, which was the lowest under selective cutting scenario.
采伐提高了森林的火险等级，择伐方式下森林的火险等级最低。
The results show that the physical and mechanical properties of middle cutting wood of Cunninghamia lanceolata are inferior to those from natural forest.
结果表明：杉间材物理力学性质较天然林差。为杉木的定向培育。
The CH4 emission before and after cutting in forest wetlands had minor correlation with the water level.
森林湿地采伐前后的甲烷排放与水位相关性不大。
The CH4 emission before and after cutting in forest wetlands had minor correlation with the water level.
森林湿地采伐前后的甲烷排放与水位相关性不大。
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